skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Real-time monitoring of calcification process by Sporosarcina pasteurii biofilm

Journal Article · · Analyst
DOI:https://doi.org/10.1039/C6AN00007J· OSTI ID:1263586

Sporosarcina pasteurii is known to produce calcite or biocement in the presence of urea and Ca2+. Herein, we report the use of novel ultramicrosensors such as pH, Ca2+, and redox sensors, along with a scanning electrochemical microscope (SECM), to monitor a real-time, bacteria-mediated urea hydrolysis process and subsequent changes in morphology due to CaCO3 precipitation. We report that the surface pH of a live biofilm changed rapidly from 7.4 to 9.2 within 2 min, whereas similar fast depletion (10 min) of Ca2+ was observed from 85 mM to 10 mM in the presence of a high urea (10 g L-1) brine solution at 23 °C. Both the pH and the Ca2+ concentration profiles were extended up to 600 μm from the biofilm surface, whereas the bulk chemical composition of the brine solution remained constant over the entire 4 h of SECM experiments. In addition, we observed a change in biofilm surface morphology and an increase in overall biofilm height of 50 μm after 4 h of precipitation. Electron microscopy confirmed the changes in surface morphology and formation of CaCO3 crystals. Development of the Ca2+ profile took 10 min, whereas that of the pH profile took 2 min. This finding indicates that the initial urea hydrolysis process is fast and limited by urease or number of bacteria, whereas later CaCO3 formation and growth of crystals is a slow chemical process. The ultramicrosensors and approaches employed here are capable of accurately characterizing bioremediation on temporal and spatial scales pertinent to the microbial communities and the processes they mediate.

Research Organization:
National Energy Technology Lab. (NETL), Albany, OR (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
OSTI ID:
1263586
Report Number(s):
20163; ANALAO
Journal Information:
Analyst, Vol. 141, Issue 10; ISSN 0003-2654
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English

References (40)

Scanning electrochemical microscopy. 19. Ion-selective potentiometric microscopy journal May 1993
Biofilm enhanced geologic sequestration of supercritical CO2 journal January 2009
Microbially mediated plugging of porous media and the impact of differing injection strategies journal May 2012
Urease activity in microbiologically-induced calcite precipitation journal February 2002
Triton X-100 concentration effects on membrane permeability of a single HeLa cell by scanning electrochemical microscopy (SECM) journal September 2010
Precipitation of carbonate minerals by microorganisms: Implications for silicate weathering and the global carbon dioxide budget journal January 1994
Application of bacteria as self-healing agent for the development of sustainable concrete journal February 2010
Biocalcification by Bacillus pasteurii urease: a novel application journal May 2009
A dual electrochemical microsensor for simultaneous imaging of oxygen and pH over the rat kidney surface journal January 2013
Discovery of a biofilm electrocline using real-time 3D metabolite analysis journal November 2011
Constant-Distance Mode Scanning Potentiometry. 1. Visualization of Calcium Carbonate Dissolution in Aqueous Solution journal July 2004
Theory of Microbial Carbonate Precipitation and Its Application in Restoration of Cement-based Materials Defects journal May 2010
Effect of Interparticle Electrostatic Double Layer Interactions on Permeate Flux Decline in Crossflow Membrane Filtration of Colloidal Suspensions: An Experimental Investigation journal August 1998
Upscaling and its application in numerical simulation of long-term CO 2 storage journal October 2012
Geochemical alteration of simulated wellbores of CO2 injection sites within the Illinois and Pasco Basins journal April 2014
Reservoir characterization of the Mt. Simon Sandstone, Illinois Basin, USA journal January 2011
Optimum conditions for microbial carbonate precipitation journal November 2010
Inhibition of the MRP1-mediated transport of the menadione-glutathione conjugate (thiodione) in HeLa cells as studied by SECM journal June 2012
Mathematical model of biofilm induced calcite precipitation journal June 2010
Use of bacteria to repair cracks in concrete journal January 2010
Single-cell migration as studied by scanning electrochemical microscopy journal January 2015
Solid-state pH nanoelectrode based on polyaniline thin film electrodeposited onto ion-beam etched carbon fiber journal January 2002
Influence of urea and calcium dosage on the effectiveness of bacterially induced carbonate precipitation on limestone journal February 2010
Solid-state pH ultramicrosensor based on a tungstic oxide film fabricated on a tungsten nanoelectrode and its application to the study of endothelial cells journal March 2003
Bio-deposition of a calcium carbonate layer on degraded limestone by Bacillus species journal February 2006
A new method for controlling leaching through permeable channels journal February 1995
The kinetics of calcite precipitation from a high salinity water journal March 1998
Mathematical model of the effect of electrodiffusion on biomineralization journal May 2011
Subscribed Content Calcium Carbonate Precipitation by Ureolytic Subsurface Bacteria journal October 2000
Evaluation of data from the literature on the transport and survival of Escherichia coli and thermotolerant coliforms in aquifers under saturated conditions journal February 2006
Microbially Enhanced Carbon Capture and Storage by Mineral-Trapping and Solubility-Trapping journal July 2010
Microbial CaCO3 mineral formation and stability in an experimentally simulated high pressure saline aquifer with supercritical CO2 journal July 2013
Microbial Concrete: Way to Enhance the Durability of Building Structures journal June 2011
Scanning Electrochemical Microscopy journal July 2008
Microbiological precipitation of CaCO3 journal October 1999
Kinetics of calcite precipitation induced by ureolytic bacteria at 10 to 20°C in artificial groundwater journal April 2004
Strain improvement of Sporosarcina pasteurii for enhanced urease and calcite production journal May 2009
Experimental and numerical modeling of bacterially induced pH increase and calcite precipitation in saline aquifers journal July 2009
Microbial carbonate precipitation in construction materials: A review journal February 2010
Real-time mapping of a hydrogen peroxide concentration profile across a polymicrobial bacterial biofilm using scanning electrochemical microscopy journal January 2011